CVE-2026-76012
Photo Gallery, Sliders, Proofing and Themes <= 4.4.1 - Authenticated (Custom+) Local File Inclusion via Lightroom 'gallery_edit' Task property_list + Image Upload
Description
The Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.4.1 via the legacy_render function. This is due to broken authorization on the Lightroom gallery_edit endpoint combined with mass assignment of gallery path and unrestricted file upload into a registered template directory, whose extension check uses a substring match that accepts sanitized .php_ filenames as valid templates. This makes it possible for authenticated attackers, with custom-level access and above, to execute code on the server. Exploitation requires the authenticated attacker to be the stored author of at least one existing NextGEN gallery, as ownership of that gallery is the sole authorization check gating the mass-assignment and upload steps.
INFO
Published Date :
Oct. 30, 2026, 6:18 p.m.
Last Modified :
Oct. 30, 2026, 6:18 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the NextGEN Gallery plugin to version 4.4.2 or later.
- Verify the authorization logic for gallery editing.
- Implement strict file upload validation.
- Review file extension checking logic.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-76012.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-76012 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-76012
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-76012 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-76012 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Oct. 30, 2026
Action Type Old Value New Value Added Description The Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.4.1 via the legacy_render function. This is due to broken authorization on the Lightroom gallery_edit endpoint combined with mass assignment of gallery path and unrestricted file upload into a registered template directory, whose extension check uses a substring match that accepts sanitized .php_ filenames as valid templates. This makes it possible for authenticated attackers, with custom-level access and above, to execute code on the server. Exploitation requires the authenticated attacker to be the stored author of at least one existing NextGEN gallery, as ownership of that gallery is the sole authorization check gating the mass-assignment and upload steps. Added CVSS V3.1 AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-434 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/76xxx/CVE-2026-76012.json">CVE-2026-76012</a> Added Reference https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.3.0/src/DisplayType/Controller.php#L564 Added Reference https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.3.0/src/DisplayType/LegacyTemplateLocator.php#L142 Added Reference https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.3.0/src/Lightroom/Controller.php#L1355 Added Reference https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.3.0/src/Lightroom/Controller.php#L1465 Added Reference https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.3.0/src/Lightroom/Controller.php#L197 Added Reference https://plugins.trac.wordpress.org/browser/nextgen-gallery/tags/4.3.0/src/Lightroom/Controller.php#L45 Added Reference https://plugins.trac.wordpress.org/changeset/3699076/nextgen-gallery/trunk/src/DisplayType/Controller.php Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/f8b09972-4d2d-4ab3-bc12-7aba32aefd49?source=cve